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  <title>Constructs a new directory iterator from a path</title>
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    <li>Constructs a new directory iterator from a path</li>
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  <div id="layout-content"><div id="directoryiterator.construct" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">DirectoryIterator::__construct</h1>
  <p class="verinfo">(PHP 5, PHP 7, PHP 8)</p><p class="refpurpose"><span class="refname">DirectoryIterator::__construct</span> &mdash; <span class="dc-title">Constructs a new directory iterator from a path</span></p>

 </div>

 <div class="refsect1 description" id="refsect1-directoryiterator.construct-description">
  <h3 class="title">说明</h3>
  <div class="constructorsynopsis dc-description">
   <span class="modifier">public</span> <span class="methodname"><strong>DirectoryIterator::__construct</strong></span>(<span class="methodparam"><span class="type">string</span> <code class="parameter">$directory</code></span>)</div>


  <p class="para rdfs-comment">
   Constructs a new directory iterator from a path.
  </p>
 </div>


 <div class="refsect1 parameters" id="refsect1-directoryiterator.construct-parameters">
  <h3 class="title">参数</h3>
  <p class="para">
   <dl>
    
     <dt>
<code class="parameter">directory</code></dt>

     <dd>

      <p class="para">
       The path of the directory to traverse.
      </p>
     </dd>

    
   </dl>

  </p>
 </div>


 <div class="refsect1 errors" id="refsect1-directoryiterator.construct-errors">
  <h3 class="title">错误／异常</h3>
  <p class="para">
   Throws an <span class="classname"><a href="class.unexpectedvalueexception.html" class="classname">UnexpectedValueException</a></span>
   if the <code class="parameter">directory</code> does not exist.
  </p>
  <p class="para">
   Throws a <span class="classname"><a href="class.valueerror.html" class="classname">ValueError</a></span>
   if the <code class="parameter">directory</code> is an empty string.
  </p>
 </div>


 <div class="refsect1 changelog" id="refsect1-directoryiterator.construct-changelog">
  <h3 class="title">更新日志</h3>
  <p class="para">
   <table class="doctable informaltable">
    
     <thead>
      <tr>
       <th>版本</th>
       <th>说明</th>
      </tr>

     </thead>

     <tbody class="tbody">
      <tr>
       <td>8.0.0</td>
       <td>
        Now throws a <span class="classname"><a href="class.valueerror.html" class="classname">ValueError</a></span> if
        <code class="parameter">directory</code> is an empty string;
        previously it threw a <span class="classname"><a href="class.runtimeexception.html" class="classname">RuntimeException</a></span>.
       </td>
      </tr>

     </tbody>
    
   </table>

  </p>
 </div>

 
 <div class="refsect1 examples" id="refsect1-directoryiterator.construct-examples">
  <h3 class="title">范例</h3>
  <p class="para">
   <div class="example" id="example-3589">
    <p><strong>示例 #1 A <span class="methodname"><strong>DirectoryIterator::__construct()</strong></span> example</strong></p>
     <div class="example-contents"><p>
      This example will list the contents of the directory containing the script.
     </p></div>
     <div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB">&lt;?php<br />$dir&nbsp;</span><span style="color: #007700">=&nbsp;new&nbsp;</span><span style="color: #0000BB">DirectoryIterator</span><span style="color: #007700">(</span><span style="color: #0000BB">dirname</span><span style="color: #007700">(</span><span style="color: #0000BB">__FILE__</span><span style="color: #007700">));<br />foreach&nbsp;(</span><span style="color: #0000BB">$dir&nbsp;</span><span style="color: #007700">as&nbsp;</span><span style="color: #0000BB">$fileinfo</span><span style="color: #007700">)&nbsp;{<br />&nbsp;&nbsp;&nbsp;&nbsp;if&nbsp;(!</span><span style="color: #0000BB">$fileinfo</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">isDot</span><span style="color: #007700">())&nbsp;{<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">$fileinfo</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">getFilename</span><span style="color: #007700">());<br />&nbsp;&nbsp;&nbsp;&nbsp;}<br />}<br /></span><span style="color: #0000BB">?&gt;</span>
</span>
</code></div>
    </div>

   </div>
  </p>
 </div>

 
 <div class="refsect1 seealso" id="refsect1-directoryiterator.construct-seealso">
  <h3 class="title">参见</h3>
  <p class="para">
   <ul class="simplelist">
    <li class="member"><span class="classname"><a href="class.splfileinfo.html" class="classname">SplFileInfo</a></span></li>
    <li class="member"><span class="classname"><a href="class.iterator.html" class="classname">Iterator</a></span></li>
   </ul>
  </p>
 </div>


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